Results 11 to 20 of about 11,723,686 (379)
IEEE Open Journal of Antennas and Propagation, 2021 A travelling-wave-fed slot spiral antenna with wide axial-ratio (AR) bandwidth and beamwidth for GNSS applications is proposed in this paper. The evolution procedure of the proposed antenna can be classified into three steps. Firstly, 12 identical spiral
Z. Zhong, Xiao Zhang
semanticscholar +1 more source
Robust UAV Position and Attitude Estimation using Multiple GNSS Receivers for Laser-based 3D Mapping [PDF]
2019 IEEE/RSJ International Conference on Intelligent Robots and
Systems (IROS), Macau, China, 2019, pp. 4402-4408, 2023 Small-sized unmanned aerial vehicles (UAVs) have been widely investigated for use in a variety of applications such as remote sensing and aerial surveying. Direct three-dimensional (3D) mapping using a small-sized UAV equipped with a laser scanner is required for numerous remote sensing applications.
arxiv +1 more source
RETHINKING INDOOR LOCALIZATION SOLUTIONS TOWARDS THE FUTURE OF MOBILE LOCATION-BASED SERVICES [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 Satellite navigation systems with GNSS-enabled devices, such as smartphones, car navigation systems, have changed the way users travel in outdoor environment.
C. Guney
doaj +1 more source
A Comprehensive Review of GNSS/INS Integration Techniques for Land and Air Vehicle Applications
Applied Sciences, 2023 Navigation systems are of interest for applications in both civilian and military vehicles. Satellite navigation systems and inertial navigation systems are the most applied in this area.
Nurlan Boguspayev +4 more
semanticscholar +1 more source
Using GNSS Observations for Tropospheric Delay Prediction Using Artificial Intelligence [PDF]
Port Said Engineering Research Journal, 2023 GNSS technology holds significant importance across wide applications, ranging from mapping, surveying, and precise timekeeping to ship navigation. Its operational principle hinges on the accurate measurement of signal travel time, which is crucial for ...
Ahmed Sedeek
doaj +1 more source
Research on GNSS positioning and applications in Poland in 2019–2022
Advances in Geodesy and Geoinformation, 2023 This paper reviews the key studies concerning GNSS positioning and applications conducted at leading Polish research institutions from 2019 until 2022.
Jacek Paziewski +3 more
doaj +1 more source
First observations with a GNSS antenna to radio telescope interferometer [PDF]
Radio Science, 58, e2023RS007734, 2023 We describe the design of a radio interferometer composed of a Global Navigation Satellite Systems (GNSS) antenna and a Very Long Baseline Interferometry (VLBI) radio telescope. Our eventual goal is to use this interferometer for geodetic applications including local tie measurements.
arxiv +1 more source
Research on GNSS positioning and applications in Poland in 2015–2018 [PDF]
Geodesy and Cartography, 2019 This review paper presents research results on geodetic positioning and applications carried out in Poland, and related to the activities of the International Association of Geodesy (IAG) Commission 4 “Positioning and Applications” and its working groups.
Paweł Wielgosz +3 more
doaj +1 more source
Protecting GNSS-based Services using Time Offset Validation [PDF]
, 2022 Global navigation satellite systems (GNSS) provide pervasive accurate positioning and timing services for a large gamut of applications, from Time based One-Time Passwords (TOPT), to power grid and cellular systems. However, there can be security concerns for the applications due to the vulnerability of GNSS.
arxiv +1 more source
ZUPT Aided GNSS Factor Graph with Inertial Navigation Integration for Wheeled Robots [PDF]
, 2021 In this work, we demonstrate the importance of zero velocity information for global navigation satellite system (GNSS) based navigation. The effectiveness of using the zero velocity information with zero velocity update (ZUPT) for inertial navigation applications have been shown in the literature.
arxiv +1 more source